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Mobile station and network having hierarchical index for cell broadcast service

a mobile station and network technology, applied in the direction of broadcast service distribution, emergency connection handling, wireless commuication services, etc., can solve the problems that neither of these previous proposals provides a totally satisfactory method to manage and facilitate the access to s-bcch messages, and achieve the effect of facilitating the ease of use of the cell broadcast servi

Inactive Publication Date: 2002-04-09
NOKIA MOBILE PHONES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The Index Message provides easy access to broadcast messages, supports multiple languages, reduces network traffic, and lowers battery consumption by enabling quick and secure emergency message indication and efficient service provider information, thereby enhancing the overall usability and speed of the Cell Broadcast service.

Problems solved by technology

However, neither of these previous proposals provides a totally satisfactory method to manage and facilitate the access to, and use of, S-BCCH messages.

Method used

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  • Mobile station and network having hierarchical index for cell broadcast service
  • Mobile station and network having hierarchical index for cell broadcast service
  • Mobile station and network having hierarchical index for cell broadcast service

Examples

Experimental program
Comparison scheme
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Embodiment Construction

now follows.

S-BCCH

These channels provide no addressing at layer 2 and, as such, a mobile station 10 in the process of acquiring S-BCCH information accepts all layer 2 frames associated with S-BCCH subchannels it has enabled. Upon entering the DCCH Camping state (see Section 6.2.3 of IS-136.1) the mobile station 10 first enables subchannel 0. When the mobile station 10 has completed the acquisition of subchannel 0, it enables other subchannels if further information is needed and requested by layer 3. When the mobile station 10 has completed the acquisition of a full cycle of information from any given subchannel it disables that subchannel. When a complete layer 3 message is recovered from received frames, layer 2 sends a FDCCH Indication primitive to layer 3 and includes the following information: (1) a layer 3 message as defined in Section 6.4, (2) a Layer 3 Length Indicator (L3LI) providing the layer 3 message length in octets, and (3) a BCCH (S-BCCH) message indication.

S-BCCH Re...

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PUM

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Abstract

This invention provides for the use of an index message in a Cell Broadcast Service. An index message is considered to be a special type of Cell Broadcast message which contains general information about actual broadcast messages. The index message is transmitted in a predetermined logical S-BCCH subchannel, and contains information elements such as (a) message overviews or summaries for each cell broadcast message, (b) information concerning emergency messages, (c) information concerning the language used in different broadcast messages, (d) an alphanumeric broadcast domain operator name and a specific operator greeting, (e) information concerning changes in broadcast messages, and (f) information concerning subchannels.

Description

This invention relates generally to radiotelephones and, in particular, to radiotelephones or mobile stations such as those capable of operation with a cellular network and / or a personal communications network.In one presently specified air interface standard (IS-136) a Short Message Service Broadcast Channel (S-BCCH) is specified for use in sending point-to-multipoint messages to mobile stations, such as radiotelephones. A maximum number of 15 slots per Superframe may be assigned to the S-BCCH logical channel. The S-BCCH is considered as a continuous channel even if more than one slot is allocated to the S-BCCH.The SMS frame may be defined as a sequence of 24 Superframes which are aligned with a Hyperframe (HF) counter. Thus, the number of slots assigned to the SMS frame are 0, 24, 48, 72, depending on how many slots per Superframe are assigned to BCCH.The Hyperframe (HF) counter and a Primary Superframe (SF) indicator can be provided in the BCCH. These two counters together (2*HF ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H04Q7/22H04Q7/38H04W4/06H04W4/90
CPCH04W72/005H04W4/12H04W76/007H04W4/22H04W76/50H04W4/90H04W72/30
Inventor LIETSALMI, MIKKOVANTTILA, JAAKKOALANARA, SEPPO
Owner NOKIA MOBILE PHONES LTD
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